Brake pedal rod for master cylinder - which to use?

Here is a picture of the master I took off. I have not been able to remove the rod. That is why I was looking for a replacement. The bolted flange holds the piston assembly in the bore and does not hold the rod in place.
What is the best way to get this rod out of the bore? My next step is to destroy the piston assembly to get at the rod.
The two bolts come out and you can remove the rod. May take some doing since it hs a rubber collar on it to keep it from popping out. Once out, chuck the plate with the 2 bolts and go to www.magnumhp.com or Year one to get the boot and a new collar. The new master cylinders don't need the plate on the back since the boot stretches over the end of the cylinder bore.

Larry